Heel-breasting machine.



No. 738,502; PATENTED. SEPT. s, 4190s.

Bf. B. WATERMAN;

HEEL, BREASTING MACHINE. APRLIUATION FILED SEPT. 15, 1902.

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No. 738,502. PATENTED SEPT. 8, 1903.

E. E. WATERMAN. HEEL E REASTING MACHINE.

APPLICATION FILED SEPT. 15I 1902.

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No. 738,502. PATENTED SEPT. 8, 1903.

B. B. WATERMAN.

HEEL BREASTING MACHINE. l

APPLIUATION FILED SEPT. 15, 1902- N0 MOIDEL.4 4 SHEETS-SHEET 4.

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UNITED STATES` Patented September 8, 1903.

PATENT OFFICE.

HEEL-BRE'STING MACHINE.

SPECIFICATION forming part of Letters latent No. 738,502, dated September 8, 1903. Application sied september 15. 1902. Serial No. 123,386. (No model.)

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Be it known that I, BRADFORD B. WATER- MAN, of East Bridgewater, county of Plymouth, State of Massachusetts, have invented an Improvement in lIeel-l'reasting Machines, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to heel-breastin g machines, and has for its obj ect to provide means for returning the knife-holder--t e., moving it away from the work independently of its aetuator-said means being operated by a suitable stop which controls the extent of downward movement of the knife.

In the preferred embodiment of my invention a suitable engaging device is interposed between the knife holder and its actuator, which is adapted to be operated by a stop which strikes thc shank of the shoe and at such time to disengage the knife-holder from its actuator, whereby said knife-holder is perl mitted to ascend or return to its normal position independently of its actuator.

It is now customary to employ in conjunction with a heel-breasting knife a stop which by striking the shank of the shoe limitsthe descent of the knife; but in practice some shanks are more yielding than others and as a result the knife descends variable distances or until the stop meets with a predetermined resistance, and as a result the sole is frequently seriously injured by the knife cutting too deep, and it is this uncertain travel or stroke of the knife that myinvention seeks to overcome.

Figure l shows in front elevation a heelbreastin g machine embodying this invention. Fig. 2 is a side elevation of the machine shown in Fig. 1. Fig. 3 is a vertical section of the knife-holder, its actuator,and adjacent parts, all of the parts being in their normal positions. Fig. 4 is a similar sectional detail, the knifeholder being in its normal position,having j ust returned independently ofits actuator and the actuator being part way up on its return stroke. Fig. 5 is a horizontal section of the head of the machine taken on the dotted line 5 5, Fig. l. Fig. (5 is an enlarged sectional detail of the clutch mechanism and dog. Fig. 7 is a perspective view of the dog and shaft bearing it, which forms a cooperative part of the engaging device between the knife-holder and actuator. Fig. 8 is a perspective view of the means provided for operating the" clutch to release the engaging device, which is interposed between the knife-holder and actuator. Fig. 9 is a sectional detail of the clutch taken on the dotted line 9 9, Fig. 6.

4A represents the base-plate of the machine, which is supported upon legs a. Suitable uprights a a2 are erected upon the base-plate, which are connected together at their upper ends by a crosspiece CL3, to thereby form a suitable framework for the operating parts. The knife Z), which may be of any usual or Suitable shape and construction, is attached toa vertically-movable knif e-holder b',which, as herein shown, is composed of a plate having its opposite side edges beveled, as at h2, to form guides, and gibs h3 are adjustably attached to the uprights a2, which overlie the beveled side edges of the knife-holder and in conjunction with said uprights a2 form vertical guideways for said knife-holder. The knife-holder has an up-and-down movement, and the knife while descending will cut the breast of the heel from the top lift thereof to the base when the shoe is supported in an inverted position in anysuitable holder or jack c. An actuator, to bedeseribed, is provided for moving' the knife-holder downward, and means independently thereof is provided for raising the knife-holder, said means, as herein shown, consisting of a spring d, attached at one end to the base-plate a or other fixed support and at its opposite end to one end of an arm c', pivoted at c2 to the framework, the oppositeend of said arm c' being connected by a link c3 with the knife-holder b'. The actuator moves the knife-holder downward against the action of the spring d, and the latter when permitted to act restores or raises Said knife-holder.

The actuator for the knife-holder is herein shown as adapted to be driven by power, and consists of a plate e, supported by the framework close to the knife-holder Z9 and movable vertically in parallelism with the knife-holder and having its opposite side edges beveled, as `at e', to form guides, and gibs e2 are adjustably attached to the uprights a2, which overlie the beveled side edges of the plate c and in conjunction with said uprights d2 form vertical guideways for said plate e. The upper end of an eccentric-rod @Sis loosely connected at e4 to an ear c5 on the back side of the plate e, and the opposite end of said eccentric-rod has a strap e6, which embraces an eccentric-disk e7, secured to a shaft es, having its bearings in the main framework. I prefer to provide the machine with two of these eccentric-rods, adapted to be operated by eccentrics secured to the shaft es, the upper ends of both of said rods being connected to the plate e. The shaft es will be driven by a pulley f, which is connected therewith by a suitable clutch of any description, whereby the shaft will be given a single revolution each time the clutch is operated to engage the shaft with the pulley, many forms of clutches for this purpose being well known.

The plate e has formed on its front side or face an inverted- T shaped projection, of which g represents the horizontal bar or portion and g the vertical portion thereof, and said projection is caused to project far enough toward the knife-holder to engage the slabbedoff side of the segmental portion g2 of a shaft l g3, which latter has its bearings in ears g4,

'projecting from the back side of the knifeholder H. When the knife-holder is in its normal elevated position the shaft g3 is adapted to be locked in a position of rest, so that the projection on the actuator may engage it and remain in continuous engagement with it while the actuator descends, thereby moving the knife-holder downward with it, and then as the knife-holder arrives at its lowermost position said shaft g3 will be unlocked and permitted to turn on its aXis a partial revolution sufficient to disengage the projection on the actuator, at which time said knife-holder is free to return, independently of its actuator, to its normal position, and as it returns the shaft cfx will be still held in its abnormal position while passing over the vertical portion g of the projection on the actuator, and as soon as the 'actuator arrives at its elevated position the shaft g3 will be permitted to resume its normal position.

I do not desire to limit my invention to the particular shape or construction of the `pro jection or shaft g so long as they are adapted to engage and be disengaged at the proper times, and thereby constitute an engaging device between the actuator and knife-holder, and consequently any other movable member properly constructed to subserve the functions of the shaft g will be considered as an equivalent of it.

The shaft g3 has secured to one of its projecting ends a dog which is adapted to engage one member of a clutch to be described.

h represents the dog-support, which is made as a block, which is secured to one end of the shaft g3, and said block h has a hole through it diametrically to receive the dog, which latter, as herein shown, consists of a pin 7L', formed with a projecting latch-like end portion h2 and shouldered within the support to form an abutment for one end of a spring h3, which surrounds the pin and which is contained in a recess in the block h. The tendency of the spring h3 is to thrust the dog outward, yet permits said dog to be thrust inward in a yielding manner. The dog normally enters a notch cut or formed in the outer side or face of a ring i, which is mounted loosely upon a stud or shaft i4, said ring i' serving as one member of a clutch, and within said ring land securely iiXed to said stud or shaft is a hub i3, which is formed externally with a plurality of inclined faces, and said hub is made much smaller in diameter than the recess in the ring z', so as to provide ample space between the hub and ring for a setv of balls 6, there being, preferably, one ball between each inclined face of the hub and the ring.

The balls are held in place and are moved in one or the other direction bya ball-retaining device or holder, which is herein shown as a ring i7, mounted loosely on the stud or shaft 114 and having a plurality of laterally-projecting fingers i', there being one linger for each ball, and said fingers are disposed between the balls so as Ato engage and move them in one or the other direction as the ring 7 is turned. Whenever the ring Fis turned in the direction of the arrow 6, Fig. 6, the several balls will be moved thereby in a corresponding direction and will be wedged between the inclined faces of the hub and the interior of the ring c', and thereby frictionally connect said ring z' with the fixed hub. The normal tendency ofthe dog Wis to turn the ring i in the direction of the arrow 3, and this acts to move the balls in the same direction to wedge them between the hub and the ring. Whenever the ball-retainin g ring '7 is moved in the direction of the arrow 5, Fig. 6, the balls will be moved in the opposite direction and will instantly disengage the ring i from the hub i3, thereby permitting said ring z' to freely turn in the direction of the arrow 3 independently. The ball-retaining ring 7 has secured to it a finger i8, which projects far enough to be engaged by a suitable actuating device for the purpose of lifting it, to thereby positively turn said ring 7 and disengage the member i. The notch in lthe ring or member i', which is engaged by the dog, normally occupies a position at one side of the center of the clutch,

so that as the actuator e descends the dog will remainin engagement with the clutch, and thereby cause the knife-holderto correspondingly descend, yet the projection g just overlaps or projects onto the shaft g3, and there-` fore tends to turn said shaft, and as a result the dog has a constant tendency to turn the ring in the direction of the arrow 3 while the actuator is descending, and would turn it if said ring were not locked by the clutch. The finger fis of the clutch rests by gravity upon a pin ln, projecting laterally from one end of a short arm n', secured to a shaft n2, having its bearings on the front side of the ICO knife-holding plate b', and at the opposite end of said shaft n2 a shortarm n3 is secured, which overlies an arm nl, secured to the front side of a harm', which latter is vertically disposed 'in a suitable recess in the front side of the plate b and has a vertical movement therein. The bar 771/ bears at its lower end a plate m2, which is adjustably connected to the bar, said plate being adapted to strike the shank of the shoe when the knife-holding plate descends. The bar m rests by gravity in the recess in the plate h and has a laterally-projecting pin m3 at its upper end, which rests upon the upper end of a plate vm4, which is secured to the plate b -and which closes the recess for the bar m. iVhile the finger 8 rests by gravity upon the pin m the ballretaining ring i? will be held turned in a direction opposite the arrow 3, so as to cause the balls to firmly engage the `ring i' and hub, and thereby lock said ring or membert' against movement in the direction of the arrow 3; but whenrthe arm m lifts said finger the ball-retaining ring will be moved in the direction of the arrow G, and the ring or member i will be instantly released. As soon as the ring or member i is released the pressure upon it in the direction of the arrow 3, which is exerted by the dog and projection g, causes said ring or member i' to turn on its axis far enough for the dog to disengage it, as shown in Fig. 4, and as soon as the dog thus disengages the ring or member 'i it will be turned by the projection g far enough for the shaft g3 to disengage said projection g and permit said projection g to pass by it, and it is at this time that the knifeholdor, being disengaged from its actuator, is free to rise and return independently of the actuator. As the knife-holder rises the dog is i held in its abnormal position by the shaft g3 passing1 along on the projection g. The ac,-

tuator immediately returns to its normal` position, following the knife-holder, and as soon as it arrives at its normal elevated position the shaft g3 passes beneaththe projection g and the dog is permitted to resume its normal position in engagement with the ring or member t'. The dog is returned to its normal position by means of a spring k. When the ball-retaining ring is disengaged from the ring or member i' by raising the finger is and said ring or member i is moved in the direction of the arrow 3 far enough to disengage the dog, the notch in the ring or member 't' will be carried out of its normal position, and to turn said ring so as to bring said notch back to its normal position a spring j is provided, one end of which is connected to the ring or member e' and the other end to a fixed support, the tendency of said spring being to turn the ring or member 'L' in a direction opposite the arrow A projection j is formed on the ring or adapted to engage a stop jg on the `frame to limit the return movement ofthe ring e' and determine its normal position relative to the member i', which is,

I do not desire to limit my invention to the details of construction herein shown and described, as, so far as the breadth and scope of my invention are concerned, many changes may be made.

The operation is as follows: The parts being in their normal positions, as represented by Figs. l, 2, and 3, the main shaft es is engaged and given one complete revolution, and during this revolution the actuator descends with itsprojection g in engagement with the slabbedoff side of the shaft g3, while the clutch is held positively, and the knife-holder will be correspondingly moved downward with the actuator until the plate m2 strikes `the shank of the shoe, the knife during its descending movement cutting the breast of the heel. The moment the plate m2 strikes the shank of the shoe the bar m ceases to move farther, and as the knife-holder continues the arm m on the bar 'm' lifts the arm n3, and thereby correspondingly lifts the arm m and raises the iin ger i8 of the clutch, disengaging p the ring or member i' from the fixed hub and instantly permitting the dog to turn on its axis'by the pressure of the actuator upon the slabbed-off side of the shaft gf", and/as said dog turns it turns the ring or member 2' of the clutch independently, so that the actuator becomes disengaged from the knife-holder and ceases to move said knife-holder downward. As soon as the dog disengages-the ring or member i' the spring CZ is permitted to act and lift the knife-holder independently of its actuator, restoring it to its normal cle-l vated position. As the knife-holder rises all the parts connected with it correspondingly rise, yet the slabbed-ofl' side of the shaft g3 continues to engage the Vertical bar or portion g of the projection on the actuator e, soA thatthe dog is still heldv from engagement IOO IIO

with the clutch even though the knife-holder should be completely restored to its normal4 elevated position. hile the knife-holder rises, the ring or member i' returns to its nor-` mal position, and the gravitating linger is also resumes its normal position and locks the clutch. Vhile the actuator e rises, the dog, however, still remains out of engagement with vthe ring or member i; but just as the actuator resumes its normal elevated position the slabbed-oif side of the shaft g3 passes beneath the bar g, and said shaft and dog carried by it resume their normal positions again, engaging the ring or member 1T.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is- Y l. In a heel-breasting machine, the combination of a knife and knifeholder, an actuator for said knife-holder, means forreturning the knife-holderindepen dently of its actuator, and means for disengaging the knifeholder :from its actuator whereby it is free to return independently thereof, substantially as described.

2. In a heel-breasting machine, the combination of a knife and knife-holder, an actuator for said knife-holder, means for returning the knife-holder independently of its actuator, a stop for controlling the descent of said knife-holder, and means operated by said stop for disengaging the knife-holder from its actuator whereby it is free to return independently thereof, substantially as described.

3. In a heel-breasting machine, the combination of a knife and knife-holder, an actuator for said knife-holder, means for returning said knife-holder independently of its actuator, an engaging device interposed between said knife-holder and actuator, and

1 means for operating said engaging device to disengage the knife-holder from its actuator, substantially as described.

4. In a heel-breasting machine, the combination of a knife and knife-holder, an actuator for said knife-holder, means for returning said knife-holder independently of its actuator, an engaging device interposed between said knife-holder and actuator, a stop and means operated by it for operating said engaging device to disengage the knife-holder from its actuator, substantially as described.

5. In a heel-breasting machine, the combination of a knife and knife-holder, an actuator for said knife-holder, an engaging device interposed between said knife-holder and actuator, clutch mechanism for controlling the operation of said engaging device, and a stop for operating said clutch mechanism to in turn operate the engaging device to disengage the knife-holder from its actuator,where by said knife-holder is free to return independently of its actuator, substantially as described.

6. In a heel-breasting machine, the combination of a knife and knife-holder, an actuator for said knife -holder, an engaging device interposed between said knife-holder and actuator, clutch mechanism for controlling the operation of said engaging device, a stop for operating said clutch mechanism to in turn operate the engaging device to disengage the knife-holder from its actuator, whereby said knife-holder is free to return independ- 73eme ently of its actuator and means for restoring said clutch mechanism ,the operation of which is controlled by said actuator, substantially as described. n

7. In a heel-breasting machine, the combination of aknife, a vertically-movable knifeholder, a vertically-movable actuator for said knife-holder, an engaging device interposed between said actuator and knife-holder, 6o

means for operating said engaging device to disengage the knife-holder from its actuator, anda spring for returning said knife-holder independentlyl of its actuator, when disengaged therefrom, substantially as described.

S. In a'heel-breastingmachi-ne, the combination of a knife, a knife-holder, an actuator for said knife-holder having a projection, a shaft carried by the knife-holder having a segmental portion adapted to be engaged by 7o said projection and also having a dog, clutch mechanism which said dog engages, also carried by said knife-holder and a stop movably connected with said knife-holder for operating said clutch mechanism to release the dog, 7 5

substantially as described.

9. In a heel-breasting machine, the combination with a knife and knife-holder, an actuator for lsaid knife -holder, means for returning said knife-holder independently of 8o its actuator, an engaging device interposed between said knife-holder, an actuator, a stop movably connected with said knife-holder and means operated by it for operating said engaging device, substantially as described.

10. In a heel-breasting machine, the combination of a knife and knife-holder, an actuator for said knife-holder, means for returning the knife-holder independently of its actuator, a stop for controlling the descent of 9o said knife-holder movably connected therewith, and means operated by said stop for disengaging the knife-holder from its actuator whereby it is free to return independently thereof, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

BRADFORD B. IVATERMAN. Vitnesses:

DAVID S. MURPHY, G. HOWARD SoULE. 

